How to store 3D matrix in text file so that it can be imported to Matlab?

Question

I have a text file as an output of a c++ program. Its actually a 3x100x200 element matrix. 3x100 2d matrices over 200 timestamps. I want to store this such that I can load it in Matlab workspace and then visualize it in a 3d plot. I am not able to figure out the structure of the text file. As in where should I put a "[..]" and where ";" and where a " " or ",".

Could someone please give an example so that I can print out in the file from the c++ code in a that manner

Answer 1

Forget the text file. Instead, write a .mat file using the Matio library. This way you will be able to quickly add some more data fields in case you need to.

If you really want to use a text file, you can first write the matrix dimensions, then all the elements, and finally do some reshaping as suggested here.